/*
 * This file is part of Applied Energistics 2. Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved. Applied
 * Energistics 2 is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General
 * Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
 * later version. Applied Energistics 2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
 * Public License for more details. You should have received a copy of the GNU Lesser General Public License along with
 * Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.core.features.registries;

import java.util.ArrayList;
import java.util.List;

import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.util.ForgeDirection;

import appeng.api.networking.security.BaseActionSource;
import appeng.api.storage.IExternalStorageHandler;
import appeng.api.storage.IExternalStorageRegistry;
import appeng.api.storage.StorageChannel;
import appeng.core.features.registries.entries.ExternalIInv;

public class ExternalStorageRegistry implements IExternalStorageRegistry {

    private final List<IExternalStorageHandler> Handlers;
    private final ExternalIInv lastHandler = new ExternalIInv();

    public ExternalStorageRegistry() {
        this.Handlers = new ArrayList<>();
    }

    @Override
    public void addExternalStorageInterface(final IExternalStorageHandler ei) {
        this.Handlers.add(ei);
    }

    @Override
    public IExternalStorageHandler getHandler(final TileEntity te, final ForgeDirection d, final StorageChannel chan,
            final BaseActionSource mySrc) {
        for (final IExternalStorageHandler x : this.Handlers) {
            if (x.canHandle(te, d, chan, mySrc)) {
                return x;
            }
        }

        if (this.lastHandler.canHandle(te, d, chan, mySrc)) {
            return this.lastHandler;
        }

        return null;
    }
}
